Device for preventing singles in roving and similar frames.



'I'. BENTLEY. DEVICE FOR PREVENTING SINGLES IN ROVING AND SIMILARFRAMES,

APPLICATION FILED APIL, 1908.

Patented 0011.4, 1910.

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DEVICE FOR PREVBNTING SINGLES IN ROVIN G ANDI SIMILAR FRAMES.APPLICATION FILED APILG, 1908.

Patented Oct. 4, 1910.`

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TlNTTED STATES PATENT FFTCE,

THOMAS BENTLEY, OF DRACUT CENTER, MASSACHUSETTS, ASSIGNOR TO BENTLEYSINGLE-AND-STOP MOTION COlVIPANY, 0F AUGUSTA, MAINE, A CORPORATION OFMAINE.

Specification-of Letters Patent.

Patented Oct. 4L, 1910.

Application filed April 6, 1908. Serial No. 425,555.

To all whom it may concern:

Be it known that I, THOMAS BENTLEY, a citizen of the United States ofAmerica, and a resident of Dracut Center, in the county of Middlesex andState of Massachusetts, have invented certain new and usefulImprovements in Devices for Preventing Singles in Roving and SimilarFrames, of which the following is a specication.

This invention relates to roving frames and similar apparatus in which aplurality of slivers are led through suitable guides and united into oneroving by suitable drawing rolls and it relates particularly to thestopping mechanism therefor whereby the operation of the apparatus willbe stopped upon the breaking of any one of the slivers passing throughsaid guides.

The invention consists in certain novel features of construction andarrangement of parts which will be readily understood by reference tothe description of the drawings and to the claims hereinafter given.

Of the drawings: Figure 1 represents a rear elevation of a portion of aroving or similar frame equipped with devices embodying the features ofthis invention. Fig. 2 represents a transverse section of the same online 2 2 on Fig. 1, looking in the direction of the arrow. Fig. 3represents a similar section showing the same parts in the positionwhich they assume when a sliver has been broken. Fig. il represents arear elevation of a pair of sliver guides and the supports therefor.Fig. 5 represents a vertical section through the guide supporting barshowing an edge view of the vertically moving sliver guides. Fig. 6represents a front elevation of the same parts one of the sliver guidesbeing shown in the position it assumes when a sliver has been broken.Fig. 7 represents a horizontal section of the same, the cutting planebeing on line 7 7 on Fig. 6, and Fig. 8 represents a section similar toFig. 5 showing the position which a sliver guide assumes when a threadhas been broken and its connection with the oscillating shaft whichoperates the stopping mechanism.

Similar characters designate like parts throughout the several iiguresof the drawings.

In the drawings, 10 represents in dotted lines a portion of a series ofbobbins from which the slivers 11 are drawn. A plate 13 is secured byscrews 14; to a bar 15 extending longitudinally of the apparatusparallel to the main frame 16 of the apparatus.

The rear face of the bar 15 has cut therein a plurality of grooves 17 ineach of which is mounted a guide plate 18 provided near its upper endwith an eye 19 through which a sliver 11 passes on its way to thedrawing rolls 20. These drawing rolls 20 are of any usual constructionand are mounted in a support 21 in two rows in the usual manner, therolls in the lower row being driven by means of a plurality of gears 22meshing with one another as clearly shown in Fig. 2, one of the shafts,as 23 of said rolls, being extended beyond the frame 21 and driven bymeans of the usual differential gearing 24- as indicated in Fig. 1.

Meshing with two of the gears 22 is an intermediate gear 25 on one endof a short shaft 26 having a bearing in the standard 27, the oppositeend of said shaft 26 having formed upon its outer end a disk member 28to which is secured by means of a stud 29 a member 30 provided at itsfree end with a lifting toe 31. To this member 30 is pivoteol at 32 alink 33, the opposite end of which is secured by means of a pin 3st to arocker arm 35 secured to a shaft 36 mounted in bearings in the supports27 and 27* and extending longitudinally of the frame.

It is obvious from an inspection of the drawings that the rotation ofthe disk 28 will cause to be transmitted to the shaft 3G an oscillatorymovement of said shaft by means of the toggle members 30 and 33, theweight of the members 30 and 33 being sufrieient under normal conditionsto provide a suitable connect-or between the disk 2S and arm 35 toeffect this movement.

Cut into the upper portion of the shaft 3G and extending-longitudinallythereof is a depression 37 one wall of which provides a suitable radialshoulder adapted to coact with one of the sliver guides 13 when it hasbeen dropped by the breaking of a sliver into the plane of movement ofsaid shoulder.

It is obvious that when a plate 18 has been thus dropped by its ownweight upon the breaking of a sliver into the position shown in Fig. 8the lower flanged end thereof will contact with the radial shoulder ofthe depression 37, thus preventing any further oscillation of said shaft36. The discontinuance of the oscillatory movement of the shaft 36 whilethe disk 28 continues to revolve will cause the toggle members 30 and 33to break, thereby raising the pivot 32 as shown in Fig. 3, this breakingmovement causing the lifting toe end of the member 30 to be elevated tosuch a degree as to move the arm 40 pivoted at 4l to be moved about saidpivot 4l a suiicient distance to disengage the latch end 42 from thenotch 43 in a rod 44 mounted in bearings in the supports 27 and 272k.

The outer end of the rod 44 has secured thereto an arm 45 which isprovided with a bifurcated end 4G straddling the belt shifting rod 47mounted in suitable bearings in the standards 27 i and the end frame 50of the machine. Secured to the rod 47 are collars or stops 48 and 49adapted to limit the movement of said rod 47 in either direction, thesecollars 48 and 49 coacting with the end frame 50 to secure thislimitation of the movement.

To the outer end of the rod 47 is secured an arm 5l having mountedthereon a member 52 adapted to engage with the drivingbelt (not shown)and cause va shifting thereof from the fast pulley 53 to the loosepulley 54 when the rod is moved endwise in a direction to the right ofFig. l. It is obvious that when the rod 47 is moved in the oppositedirection the belt will be shifted by means of the member 52 from theloose pulley 54 to the driving pulley 53 and the apparatus will again beputin operation. This end movement of the rod 47 is obtained by theaction of the arm 45 against the collar 48 when the latch 42 is releasedfrom the notch 43 thus permitting the spring 55 surrounding the rod 44to act upon the collar 56 secured to said rod to move the samelongitudinally in its bearings in the supports 27-27 The rod 47 isconnected by means of the member 57 to a rod 58 extending longitudinallyof the apparatus and movable in bearings in standards such as thestandard 59. To the upper end of the standard 59 is pivoted amanually-operated device 60 which is adapted to coact with a projectionGl extending from the upper end of the connecting member 57 whichpivoted device, when moved about its pivot, is adapted to act upon saidprojection Gl to move` the belt shifting rod 47 to shift the belt fromthe fast pulley 53 to the loose pulley 54 to stop further operation ofthe apparatus this movement being made without aecting the movement ofthe rod 44.

lt is obvious, however, from the foregoing description, that whenever asliver breaks and the plate 18 which is supported by said sliver ispermitted to drop by its own weight into the path of the shoulder on theoscillating rod 36, thereby effecting a disengagement of the latch 42from the notch 43, the spring 55 will act upon the collar 56 toautomatically stop the machine by shifting the belt onto the loosepulley, as heretofore described.

Each of the plates 18 is provided near its lower end with a shoulder 62which engages with a pivoted indicator 63, the front end of which isupturned as at 64 in front of one of the drawing rolls 20. Then theplate 18 drops the shoulder 62 will engage the rear end of the pivotedindicator G3 and cause the front end 64 thereof to be moved upwardlyinto the position shown in Fig. 3 to indicate which particular sliver'has broken and effected the stoppage of the apparatus so that theoperator may quickly discover where the break occurred, and mend thesame so that further operation of the apparatus may be permitted. Thismakes a very simple form of stop motion for apparatus of this classwhich stop motion is adapted to be operated either manually when desiredor automatically whenever any particular sliver breaks at any point uponthe frame and which provides a simple means for immediately disclosingto the operator the particular point at which the break occurred.

The curved bearing face of the lifting toe 3l is of such form thatduring the rotation of the disk 28 and the oscillation of the shaft 36,the end of the arm 40 will ride along said curved face without effectingany movement of the arm about the pivot 4l to disengage the latch 42from the notch 43 in the shaft 44.

It is obvious from the foregoing that whenever a sliver is broken theapparatus will be stopped before the broken sliver reaches the drawingrolls and a splice may be made therein intermediate said drawing rollsand the sliver guides before the apparatus is again started. fore thatthis means of operation will effectively prevent the singles whichseriously impair the manufactured article.

.it is believed that from the foregoing the operation of the inventionand the many advantages of an apparatus such as has herein beendescribed will be thoroughly understood without further description.

Having thus described my invention, I claim:

l. In an apparatus of the class described, the combination with astopping mechanism therefor; of a rocker shaft; an arm. thereon; arevoluble disk upon a gear in mesh with the drawing roll gears; atwo-part pivoted connector one part of which is pivoted to said arm andthe other part is eccentrically connected to said disk adapted normallyto impart a rocking movement to said shaftbut also adapted to breakwhenever the It is evident therel movement of said shaft is limited;means for limiting the movement of said shaft operable by the breakingof a thread; and means interposed between said pivoted connector andsaid stopping mechanism for operating the latter by the abnormalmovement of the former.

2. In an apparatus of the class described, the combination with astopping mechanism therefor; of a rocker shaft; an arm thereon; arevoluble disk upon a gear in mesh with the drawing roll gears; togglemechanism, the two ends of which are respectively pivotally connected tosaid arm and disk; adapted normally to impart a rockingmove- 'ment tosaid shaft but also adapted to break whenever the movement of said shaftis limited; means for limiting the movement of said shaft operable bythe breaking of a thread; a spring-pressed rod for operating saidstopping mechanism; a latch pivoted to a fixed member in substantiallythe same plane with said toggle mechanism and normally engaging andlocking said rod; and means for moving said latch about its pivot by thebreaking of said toggle mechanism.

3. In an apparatus of the class described, the combination with astopping mechanism therefor; of a rocker shaft; an arm thereon; arevoluble disk upon a gear in mesh with the drawing roll gears; a togglemechanism; the two ends of which are respectively pivotally connected tosaidl arm and disk; adapted to impart a rocking movement to said shaftbut also adapted to break whenever the movement of said shaft islimited; means for limiting the movement of said shaft operable by thebreaking of a thread; a spring-pressed rod for operating said stoppingmechanism; an extension to one part of said toggle mechanism; and alatch pivoted to a fixed member in substantially the same plane withsaid toggle mechanism and normally engaging and locking said rod, saidlatch having an arm co-acting with said extension and adapted to bemoved thereby to move said latch about its pivot when said togglemechanism is broken.

4. In an apparatus of the class described, the combination with astopping mechanism therefor; of a rocker shaft; an arm thereon; arevoluble disk upon a gear in mesh with the drawing roll gears; a togglemechanism; the two ends of which are respectively pivotally connected tosaid arm and disk, adapted to impart a rocking movement to said shaftbut also adapted to break whenever t-he movement of said shaft islimited; means for limiting the movement of said shaft operable by thebreaking of a thread; an extension to one part of said toggle mechanism;a spring-pressed rod for operating said stopping mechanism having aperipheral notch; and a latch pivoted to a fixed .member insubstantially the same plane with said toggle mechanism and normallyengaging said locking rod; said latch having an arm co-acting with saidextension and adapted to be moved thereby to move said latch about itspivot when said toggle mechanism is broken.

5. In an apparatus of the class described; the combination with astopping mechanism therefor; of a rocker shaft; an arm thereon; arevoluble disk upon a gear in mesh with the drawing roll gears; togglemechanism; the two ends of which are respectively pivotally connected tosaid arm and disk; a spring-pressed rod for operating said stoppingmechanism provided with a peripheral not-ch; a latch in substantiallythe same plane with said toggle mechanism pivoted to a fixed member andnormally engaging said notch; means for disengaging said latch from saidnotch by the breaking of said toggle mechanism; a member retainednormally in raised position by a thread; and means adapted upon thebreaking of said thread to permit said member to engage with said rockershaft and limit the movement thereof.

G. In an apparatus of the class described, the combination with astopping mechanism therefor; of a rocker shaft; an arm thereon; arevoluble disk upon a gear in mesh with the drawing roll gears; togglemechanism; the two ends of which are respectively connected to said armand disk; `a springpressed rod for operating said stopping mechanismprovided with a peripheral notch a latch in substantially the same planewith said toggle mechanism pivoted to a fixed member and normallyengaging said notch; means for disengaging said latch from said notch bythe breaking of said toggle mechanism; a member retained normally inraised position by a thread; means adapted upon the breaking of saidthread to permit said member to engage with said rocker shaft and limitthe movement thereof; and an indicator operated by the movement of saidmember upon the breaking of a thread.

7. In an apparatus of the class described; the combination with astopping mechanism therefor; of a rocker shaft; an arm thereon; arevoluble disk upon a gear in mesh with the drawing roll gears; togglemechanism; the two ends of which are respectively pivotally connected tosaid arm and disk; a spring-pressed rod for operating said stoppingmechanism provided with a peripheral notch; a latch in substantially thesame plane with said toggle mechanism pivoted to a fixed member andnormally engaging said notch; means for disengaging said latch from saidnotch by the breaking of said toggle mechanism; a member retainednormally in raised position by a thread; means adapted upon the breakingof said thread to permit said member to engage with said IIO rockerShaft and limit the movement thereof; and a Weighted indicator adaptedto be moved about a pivot by Said member Whenever a thread breaks.

S. In an apparatue of the clase described; the combination with aStopping mechanism therefor; of a. spring-pressed rod for operating saidStopping mechanism; a latch pivoted to a Xed member and normally lockingsaid rod and latch, having` a lifting toe engaging arm; a rocher shaft;an arm thereon; a rei'oluble diek upon a gear in mesh With the drawingroll geare; a twopartI pivoted connector, one part ot' Which is pivotcdto Said arm and the other part ie eccentrically connected to Said diskand has an extension. beyond the pivotal connection to the other partprovided With a curved surface adapted to be engaged by the end ot saidlatch arm; which normally movee over Said curved Surface Without movingsaid latch about its pivot; means for limiting the movement of saidShaft operable by the breaking of a thread and thus etfeeting a break ofSaid pvoted connector and the lifting of said extension and therebymoving Said latch about its pivot.

Signed by me at 7 lVater st., losstou7 Mase., this 21st day of March,1908.

THOMAS BENTLE Y.

lllitnesSee EDNA C. CLEVELAND; WALTER E. LOMBARD.

